CN212293236U - Plateau low-temperature sewage treatment device - Google Patents
Plateau low-temperature sewage treatment device Download PDFInfo
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- CN212293236U CN212293236U CN202021347292.3U CN202021347292U CN212293236U CN 212293236 U CN212293236 U CN 212293236U CN 202021347292 U CN202021347292 U CN 202021347292U CN 212293236 U CN212293236 U CN 212293236U
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Abstract
The utility model discloses a plateau low-temperature sewage treatment device, which is provided with a water inlet and a sludge return port on an adjusting tank; a mudguard is arranged on the anaerobic tank, a lamp tube type cannula is obliquely arranged on the aerobic tank, and a water outlet is arranged on the disinfection tank; the outlet end of the lamp tube type insertion tube is provided with a microporous aeration head which is connected to an aeration tube; sludge outlets are arranged below the regulating tank, the anaerobic tank and the aerobic tank; a transmission belt is arranged below the aerobic tank, and a heater is arranged below the transmission belt; the lamp tube type cannula has the following specific structure: the spherical carrier is fixed in the tube wall of the lamp tube type insertion tube at certain intervals and comprises a fixing ring fixed on the tube wall, a spherical carrier frame connected with the fixing ring and filler inside the spherical carrier frame. The utility model overcomes the problem that the current sewage treatment facility can not normally operate in winter improves the treatment effeciency, especially promotes nitrogen and phosphorus removal effect, improves environmental quality greatly.
Description
Technical Field
The utility model relates to a sewage treatment field, concretely relates to plateau low temperature sewage treatment plant.
Background
With the deep advance of western large-scale development strategy, western plateau areas are undergoing large-scale development and construction, and have unprecedented development opportunities. Meanwhile, the artificial activities such as the opening of the Qinghai-Tibet railway, the influx of people, factory construction, road and bridge engineering and the like bring little pressure to the local environment, and the pollution of domestic and production sewage generated in the process to the water source in the plateau area cannot be ignored. The plateau area has small environmental capacity, the self-cleaning capacity of the water bodies in rivers and lakes is poor, and the water bodies are difficult to recover once being polluted. The sewage treatment facility is an artificial strengthening treatment place which is necessary before various kinds of sewage are discharged into the natural environment, and whether the sewage is normally operated directly relates to the final result of the treatment of the water pollution, and has a vital function for protecting the water environment of rivers and lakes in the plateau area.
The plateau high-cold regions mainly comprise southwest parts of Qinghai province, Sichuan province, southwest parts of Yunnan province and Tibet autonomous regions, and have the characteristics of high altitude, low air pressure, low oxygen content in air and the like compared with the eastern plain regions of China, and the average altitude of partial cities in the regions is more than 2200m, and some cities even reach more than 3000 m. Because of high altitude, low air pressure, large temperature difference and low annual average temperature, sewage treatment plants built in the regions have special requirements on sewage treatment technology. According to related research, the established sewage plant in southwest of Sichuan province (the areas of Abam, Ganjin and Liangshan mountain) can not normally operate basically in winter.
At present, the research on low-temperature sewage treatment technology is mainly carried out from the aspects of process improvement and low-temperature strain culture, and a small part of the research is related to the modes of buried heat preservation assistance and the like, so that the research is limited by the aspects of energy utilization and cost and has no research report on heating and temperature rise of low-temperature sewage. The research on the sewage treatment technology in the plateau low-temperature environment is less, and the general research focuses on improving the oxygen supply shortage in the plateau, improving the aeration strength and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a plateau low temperature sewage treatment plant is provided, overcome the problem that current sewage treatment facility can not normal operating in winter, improve the treatment effeciency, especially promote nitrogen and phosphorus removal effect, improve environmental quality greatly.
In order to solve the technical problem, the utility model discloses a technical scheme is: a plateau low-temperature sewage treatment device comprises an adjusting tank, an anaerobic tank, an aerobic tank and a disinfection tank which are arranged in sequence; the regulating tank is provided with a water inlet and a sludge return port for returning the sludge at the rear section; a fender is arranged on the anaerobic tank, a lamp tube type insertion tube is obliquely arranged on the aerobic tank, and a water outlet is arranged on the disinfection tank; a microporous aeration head is arranged at the outlet end of the lamp tube type insertion tube and connected to an aeration tube; sludge outlets are arranged below the regulating tank, the anaerobic tank and the aerobic tank; a transmission belt is arranged below the aerobic tank, a heater is arranged below the transmission belt, and an insulating layer is arranged below the heater; the lamp tube type cannula is characterized in that: the spherical carrier is fixed in the tube wall of the lamp tube type insertion tube at intervals, and comprises a fixing ring fixed on the tube wall, a spherical carrier frame connected with the fixing ring and a filler inside the spherical carrier frame.
Further, the two ends of the lamp tube type insertion tube are provided with rotatable connecting pieces.
Further, the heater is connected with a storage battery, and the storage battery, the controller and the solar panel are sequentially connected.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses plateau low temperature device makes the processing of plateau winter low temperature sewage have technical feasibility, and this equipment has promoted the treatment effect greatly.
2. The replaceable lamp tube type cannula is convenient to manage and maintain, and can form a local anoxic and aerobic environment to improve the treatment effect.
3. The inclined tube type sedimentation structure is convenient for discharging the residual sludge, and simultaneously improves the use efficiency of aeration, so that air and water are fully contacted.
4. The combination of the improved AO process and elutriatable granular sludge and the local anoxic environment are provided, and the denitrification effect under the low-carbon-source environment is improved.
5. The method adopts new energy to heat plateau low-temperature sewage, and integrally improves the sewage treatment effect in a low-temperature environment. The design structure of direct current electric heating and aeration improves the durability of the device and saves energy sources.
6. The highly integrated equipment is convenient for construction and management operation in plateau areas, and saves construction cost and later-stage operating cost.
Drawings
FIG. 1 is a structural diagram of the plateau low-temperature sewage treatment device of the utility model.
Fig. 2 is a top view of the middle tube type cannula of the present invention.
Fig. 3 is a side view of the middle tube type cannula of the present invention.
Fig. 4 is a schematic view of the spherical carrier in the lamp-tube type cannula of the present invention.
Fig. 5 is a schematic view of the new energy heating structure of the present invention.
FIG. 6 is a flow chart of a sewage treatment method based on the device of the utility model.
In the figure: a water inlet 1; a water outlet 2; a sludge return port 3; a fender 4; a lamp tube type cannula 5; a regulating tank 6; an anaerobic tank 7; a microporous aeration head 8; an aeration pipe 9; a sludge outlet 10; a sterilizing tank 11; an aerobic tank 12; a spherical carrier 13; a rotatable coupling 14; a tube wall 15; a drive belt 16; a heater 17; an insulating layer 18; a battery 19; a controller 20; a solar panel 21; a fixing ring 131; a spherical carrier frame 132; and a filler 133.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. The sewage treatment device provided by the utility model can be called as an AICO reactor (Anaerobic Internal Circulation oxygen), an Anaerobic and aerobic Internal Circulation process is added, namely, the improved AO process flow adds an aerobic Internal Circulation stage on the traditional AO process; AO process, i.e. anaerobic-aerobic process, A (anaerobic) is an anaerobic stage for phosphorus removal and O (oxic) is an aerobic stage for removal of organic matter from water.
The utility model relates to a plateau low temperature sewage treatment plant, its structure is: comprises an adjusting tank 6, an anaerobic tank 7, an aerobic tank 12 and a disinfection tank 11 which are arranged in sequence; the adjusting tank 6 is provided with a water inlet 1, and the adjusting tank 6 is also provided with a sludge return port 3 for returning the sludge at the rear section; a mud guard 4 is arranged on the anaerobic tank 7, a lamp tube type insertion tube 5 is obliquely arranged on the aerobic tank 12, and a water outlet 2 is arranged on the disinfection tank 11; a microporous aerator 8 is arranged at the outlet end of the lamp tube type insertion tube 5, and the microporous aerator 8 is connected to an aerator tube 9; a sludge outlet 10 is arranged below the adjusting tank 6, the anaerobic tank 7 and the aerobic tank 12; a transmission belt 16 is arranged below the aerobic tank 12, a heater 17 is arranged below the transmission belt 16, and an insulating layer 18 is arranged below the heater 17; the lamp tube type cannula 5 is characterized in that: the spherical carrier 13 is fixed at a certain distance in the tube wall 15 of the tubular insertion tube 5, and the spherical carrier 13 comprises a fixing ring 131 fixed on the tube wall 15, a spherical carrier frame 132 connected to the fixing ring 131, and a filler 133 inside the spherical carrier frame 132.
As an optimization of use, the tube type insertion tube 5 is provided with rotatable connecting pieces 14 at two ends.
As another optimization, the heater 17 is connected with a storage battery 19, and the storage battery 19, the controller 20 and the solar panel 21 are connected in sequence.
The utility model discloses provide a processing method according to above-mentioned plateau low temperature sewage treatment plant simultaneously, specifically do: under the condition that equipment is successfully debugged and granular sludge exists, low-temperature sewage (plateau domestic sewage at 8-12 ℃) enters an adjusting tank 6 through an external grid to adjust the water quality and water quantity, and large granular pollutants discharged by standing are discharged from a sludge outlet 10 at the bottom; sewage flows into a tank A (an anaerobic tank 7) after passing through a regulating tank, meanwhile, back-section backflow sewage/sludge also flows into the tank A through a sludge backflow port 3, phosphorus is removed through phosphorus release bacteria reaction in an anaerobic environment, and residual phosphorus-containing sludge is discharged from the bottom; then sewage slowly flows into an O pool (aerobic pool 12), is heated by a bottom efficient heater 17 to raise the temperature to about 10 ℃ (the sewage temperature is controlled at 29 ℃ at most), and is aerated in a lamp tube type intubation 5 of the O pool to remove organic matters, the intubation aeration divides the whole O pool into an aerobic area (in the intubation) and an anoxic area (out of the intubation), and denitrification reaction (denitrification) can be effectively carried out under the assistance of proper water temperature; through the inclined tube sedimentation principle, a small part of residual sludge (or dead sludge) which cannot be gathered in the spherical carrier 13 can be precipitated, and meanwhile, the sludge and the water are better separated due to the isolation of the inclined tube in the middle of the O tank, so that the effect of a sedimentation tank is achieved, supernatant is discharged, and bottom sludge is discharged; discharging the supernatant effluent of the O tank into a disinfection tank 11, and discharging after disinfection.
The technical effect of the method of the present invention will be described below by way of specific examples.
Mixed sewage is obtained from an underground sewage pipeline of a sewage treatment station in a town (the altitude is about 3000 m) of Jiulong county, Ganzui, Sichuan province, and the water temperature in the water pipe is measured to be about 10.8 ℃. The content of COD (chemical oxygen demand) in the pollutant is 220mg/L, BOD5The biochemical oxygen demand in five days is 75mg/L, the ammonia nitrogen concentration is 31mg/L, the total phosphorus concentration is 3.6mg/L, and the SS (suspended solid) is 110 mg/L.
Adopt the utility model discloses the method is tested, at first inserts the AICO reactor with sewage, intakes in succession, flows into the A pond through the equalizing basin, reentries O pond, and disinfection pond, equalizing basin, A pond, O bottom of the pool surplus mud discharge are arranged into to the supernatant fluid after the processing. The method comprises the following specific steps:
1) and (3) a regulating tank 6 for feeding water from the top and discharging mud from the bottom, wherein the retention time is 4 hours, and the water quality and the water quantity are regulated.
2) And (3) a pool A (an anaerobic pool 7), wherein water is fed from the upper part, sludge is discharged from the bottom part, the retention time is 2 hours, and phosphorus is quickly released to discharge the sludge.
3) An O tank (an aerobic tank 12) and an aerobic internal circulation tank, the detention time is 16 hours, the aerobic environment in the lamp tube type insertion tube 5, the anoxic environment outside the lamp tube type insertion tube 5, the micropore aeration in the insertion tube, the inclined tube type sedimentation and sludge discharge fully utilize the space, shorten the process flow, fully contact air and water and better separate sludge and water. Adjusting the reflux ratio according to the inlet water concentration, discharging the redundant excess sludge, and enabling the supernatant to flow out from the upper part.
4) And a sludge discharge position at the lower part of the O tank (aerobic tank 12) is provided with a high-efficiency heating device to heat up and improve the effect of denitrification reaction, and simultaneously, the water temperature in the whole O tank is improved, so that the activity of each microorganism is enhanced. Controlling the local water temperature within 28 ℃.
5) An O tank (aerobic tank 12), a lamp tube type intubation tube 5, a spherical carrier 13, and the formation and stabilization of solidified granular sludge; the microporous aeration is combined with the inclined tube type cannula structure, the aeration efficiency is optimized, certain selectivity is provided for granular sludge, and the organic matter removal effect is enhanced.
6) And (3) the disinfection tank 11 stays for 0.5-1 hour, and is discharged after the disinfection reaction.
The above specific numerical values are reference values, and should be adjusted according to actual conditions.
After the device is stable, the effluent can stably reach the first-class A standard in GB18918-2002 pollutant discharge Standard of urban Sewage treatment plant, and the effluent monitoring result is as follows: the content of COD (chemical oxygen demand) in the pollutant is 17.0mg/L, BOD5(five-day biochemical oxygen demand) is 4.5mg/L, ammonia nitrogen concentration is 1.6mg/L, total phosphorus concentration is 0.35mg/L, and SS (suspended solid) is 6.0 mg/L.
Wherein the SS measuring method adopts GB11901-89 gravimetric method to determine, the COD value measuring method adopts HJ 828-2017 potassium dichromate method to determine, BOD5The value is measured by adopting a dilution and inoculation method of HJ 505-2009, the ammonia nitrogen is measured by adopting a nano-reagent spectrophotometry method of HJ 535-2009, and the total phosphorus is monitored by adopting an ammonium molybdate spectrophotometry method of GB 11893-89.
Claims (3)
1. A plateau low-temperature sewage treatment device is characterized by comprising an adjusting tank (6), an anaerobic tank (7), an aerobic tank (12) and a disinfection tank (11) which are arranged in sequence; the adjusting tank (6) is provided with a water inlet (1), and the adjusting tank (6) is also provided with a sludge return port (3) for returning the sludge at the rear section; a mud guard (4) is arranged on the anaerobic tank (7), a lamp tube type insertion tube (5) is obliquely arranged on the aerobic tank (12), and a water outlet (2) is arranged on the disinfection tank (11); a microporous aeration head (8) is arranged at the outlet end of the lamp tube type insertion tube (5), and the microporous aeration head (8) is connected to an aeration tube (9); a sludge outlet (10) is arranged below the adjusting tank (6), the anaerobic tank (7) and the aerobic tank (12);
a transmission belt (16) is arranged below the aerobic pool (12), a heater (17) is arranged below the transmission belt (16), and an insulating layer (18) is arranged below the heater (17);
the lamp tube type cannula (5) is characterized in that: the spherical carrier (13) is fixed in the tube wall (15) of the lamp tube type insertion tube (5) at a certain distance, and the spherical carrier (13) comprises a fixing ring (131) fixed on the tube wall (15), a spherical carrier frame (132) connected with the fixing ring (131) and a filler (133) inside the spherical carrier frame (132).
2. The plateau low-temperature sewage treatment device according to claim 1, wherein both ends of said lamp-tube type insertion tube (5) are provided with rotatable connectors (14).
3. The plateau low-temperature sewage treatment device according to claim 1, wherein the heater (17) is connected with a storage battery (19), and the storage battery (19), the controller (20) and the solar panel (21) are connected in sequence.
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CN202021347292.3U CN212293236U (en) | 2020-07-10 | 2020-07-10 | Plateau low-temperature sewage treatment device |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN111762973A (en) * | 2020-07-10 | 2020-10-13 | 四川优尼柯环保科技有限公司 | A kind of plateau low temperature sewage treatment device and treatment method |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN111762973A (en) * | 2020-07-10 | 2020-10-13 | 四川优尼柯环保科技有限公司 | A kind of plateau low temperature sewage treatment device and treatment method |
CN111762973B (en) * | 2020-07-10 | 2025-03-04 | 四川优尼柯环保科技有限公司 | A plateau low-temperature sewage treatment device and treatment method |
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